Digital.security, a subsidiary of the Econocom Group, is a consulting firm specializing in the field of Cybersecurity, Connected Objects Security and Industrial Security. With our 230 employees in the largest cities of France and internationally, we assist companies and administrations in defining their security strategies, their implementation and their maintenance in operational conditions, by controlling and auditing measures applied. Digital.security is characterized by its rare capabilities for innovation and security research and has created the CERT-DS, the first CERT ™ specialized in the ecosystem of connected objects and has its own R & D laboratory. Because the value of digital.security lies in our ability to let our employees flourish and allow their curiosity to express themselves, we capitalize on the talents we recruit for the purpose of: • Better know and apprehend threats. • Constantly find new solutions and working methods for companies, • To best serve business cybersecurity Mandated by CERT digital.security, you strengthen a dynamic and experienced team of a multinational organization in the field of finance. Job duties: - Test key scenarios of the organization's infrastructure or business applications, using attack tools, to emulate realistic tactics, techniques, and procedures; - Replicate sophisticated cyber attacks to continually test and improve the defense capability of the organization, integrated within a CSIRT / CERT / SOC; - Validate defense techniques and critical systems strengthening to mitigate future cyber risks; - Identify elaborate malicious activities that bypass traditional surveillance capabilities; - Compose the overall response to major incidents to ensure the rapid completion of investigations; - Develop and maintain the documentation of the various Purple Team processes used within the CSIRT / CERT / SOC; - Adopt an offensive as well as defensive point of view. Candidate profile: Graduate in computer science, you have a proven experience of several years in the field of computer security offensive and / or defensive. You are endowed with a sharp critical and analytical mind, excellent interpersonal skills and a strong sense of service and excellence. You want to integrate teams on a human scale favoring the proximity and transmission of knowledge. You seek a stimulating work environment conducive to learning and personal growth. Certifications can strengthen a partial professional experience (NO (GPEN, GWAPT, GXPN), Offensive Security Certifications (OSCP, OSCE, OSWE).